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| author | Sergei Petrunia <psergey@askmonty.org> | 2016-09-23 14:18:29 +0300 |
|---|---|---|
| committer | Sergei Petrunia <psergey@askmonty.org> | 2016-09-23 14:21:07 +0300 |
| commit | a13de89a54b5e0245cf7d67ca716131abd1fcd96 (patch) | |
| tree | 5f16362eba3300982b0c47896fdc3067d26d3792 /sql/sql_load.h | |
| parent | 0f8a1a314d49adfe8e20c5e4d3e98e37b91b068e (diff) | |
| download | mariadb-git-bb-10.2-mdev9736.tar.gz | |
MDEV-9736: Window functions: multiple cursors to read filesort resultbb-10.2-mdev9736
Add support for having multiple IO_CACHEs with type=READ_CACHE to share
the file they are reading from.
Each IO_CACHE keeps its own in-memory buffer. When doing a read or seek
operation on the file, it notifies other IO_CACHEs that the file position
has been changed.
Make Rowid_seq_cursor use cloned IO_CACHE when reading filesort result.
Diffstat (limited to 'sql/sql_load.h')
0 files changed, 0 insertions, 0 deletions